Do you clean brickwork as well as render?

Yes, we clean brick alongside render using soft washing and steam, particularly for black streaking and ingrained staining, and we adjust pressure to protect older lime mortar.

How often does render need cleaning?

It depends on aspect and exposure — shaded, north-facing or coastal-exposed elevations tend to need attention more often than sheltered, south-facing ones. Most properties do well with a clean every couple of years, sometimes longer.

Will the biocide harm my plants or pets?

We cover or move planting before we start and are spill management trained to handle and dispose of chemicals properly, minimising any risk to plants, pets or the surrounding area.

Do you clean commercial and industrial premises?

Yes, we clean render, brick and block on shops, offices and industrial units, usually scheduling around opening hours so it doesn't disrupt business.

K-Rend, Monocouche & Brick Cleaning in Seaham

Algae and black streaking removed from render and brick in Seaham using biocide soft washing, never pressure washing. Call 07501 060609 for a free quote.

A soft-washed render or brick elevation in Seaham comes back looking close to its original colour — not patchy, not streaked, and not stripped back to bare aggregate the way an aggressive pressure wash can leave sand-and-cement render.

Call Trevor on 07501 060609 for a quote based on elevation size, render type and access, or ask for a free look at the property first if you're not sure what you're dealing with.

Render cleaning only works long-term if the method matches the surface, so on K-rend, monocouche, pebbledash and sand-and-cement render in Seaham we soft wash — biocide applied at low pressure, given time to work into the growth, then rinsed off gently.

Homeowners

Protecting the value of your home

Left untreated, algae and lichen on render don't just look bad — trapped moisture behind established growth can eventually affect the render coat itself, and black streaking on brick can mask early signs of pointing that needs attention. Regular soft washing keeps growth from reaching that point, which is cheaper than dealing with render or repointing repairs later.

How we clean render and brick, step by step

We start with a walk-round survey of the render or brick, checking render type, how established the algae or lichen growth is, and whether there's any cracking or damage worth noting before we start.

Biocide is applied first and left to dwell, breaking down algae, lichen and black streaking at the root rather than just knocking it off the surface. Once it's worked, we rinse at low pressure — or with steam on brick and stubborn black staining — lifting the dead growth away without forcing water behind the render or into old mortar joints.

The biocide we use

We use professional-grade biocide formulated to kill algae, lichen and fungal growth on render and masonry, applied at rates matched to the surface and how established the growth is. We're biocide trained (2024), so it's used correctly rather than sprayed on and rinsed off too soon.

Access for commercial and multi-site jobs

For larger or commercial properties near A19, we plan access and parking in advance so equipment can be set up without disrupting deliveries, customers or shared yards.

What affects the price

Two similarly sized properties can price differently depending on render type — monocouche and K-rend usually cost a little more to treat properly than sand-and-cement, since they need more careful handling — and on how much scaffolding or platform access is needed for higher elevations.

Single elevation (render or brick)

from around £150–£220

Detached property, all elevations

typically £400–£650

Bungalow, all elevations

typically £220–£320

Larger detached property

typically £450–£700

Areas we cover around Seaham

As well as Seaham, we regularly clean render and brick in Dawdon, Dalton le Dale, Ryhope and Murton, and further out in Hetton-le-Hole, Ashbrooke, Hendon and Houghton-le-Spring — so if you're nearby but not listed here, get in touch anyway, it's likely still within our patch.

Render & Brick Cleaning (Soft Wash) near Seaham

Render & Brick Cleaning (Soft Wash) in Seaham — common questions

Never pressure washed, always soft washed — biocide treatment and low-pressure rinsing for render and brick in Seaham, with results that last because the growth is actually killed, not just moved.

Algae, lichen and black streaking don't need a pressure washer to shift — they need the right biocide treatment and a bit of patience. That's what we bring to every render and brick job in Seaham.

Soft washing gets to the root of algae, lichen and black streaking rather than just blasting it off, and it's the only method that won't damage K-rend, monocouche, pebbledash or sand-and-cement render. That's the standard we work to on every job across Seaham.

Fully insured, properly trained

Fully insured
Public liability cover in place for every job, render or brick, residential or commercial.
Asbestos awareness trained
Know what to look for and how to handle it on older properties.
Spill management trained
Runoff and product handled responsibly around your property.
Run by Trevor
Direct contact, not a call centre — 07501 060609 goes straight through.

Ready when you are

Soft washing lifts algae, lichen and black streaking without the risk pressure washing carries for render and old brick pointing. Get a no-obligation quote today.

Get started Call 07501060609

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Render & Brick Cleaning (Soft Wash) in Seaham — the elevation part-way through treatment, in the Durham County Council area

Render & Brick Cleaning (Soft Wash) in Seaham — the finished render drying in the sun, in the Durham County Council area

Render & Brick Cleaning (Soft Wash) in Seaham neighbourhoods

Dawdon